On April 8, we declared a statewide drought emergency, the fourth in a row for the Yakima Basin. Here are the water supply ...

It includes things like rain washing bacteria from animal waste or chemicals off land into rivers, or losing shade trees next ...

The policy lowered carbon emissions by 3 million tons and generated over $67 million for innovation and community investments in 2024 In addition to stimulating investment in low-carbon fuel ...

More clean energy and less coal power: That’s the recipe for a drop in Washington’s greenhouse gas emissions detailed in a new Washington Department of Ecology report. Despite population and economic ...

The Washington state well report (log) viewer, our most popular online resource, allows you to search for and view detailed records of the construction and subsurface characteristics of individual ...

Some of our water quality improvement projects, including total maximum daily loads (TMDLs), are active and have webpages that are listed alphabetically (see left navigation menu). However, to find ...

We are responsible for protecting, preserving, and enhancing Washington’s environment. Permits and certifications ensure that individuals and businesses understand and comply with all applicable ...

We publish an online SEPA Register that includes all State Environmental Policy Act (SEPA) and National Environmental Policy Act (NEPA) documents that have been submitted to Ecology. The SEPA Register ...

We work hard every day to achieve our legislative goal of “zero spills.” Our vessel inspectors are professional mariners with extensive experience in ship operations and regulatory requirements. They ...

We’re excited to announce the winners for our Solution to the Pollution Earth Day coloring book design contest! Students in ...

Coho salmon returning to rivers and streams often die before they can spawn. Photo by Roger Tabor, US Fish and Wildlife For over 20 years, scientists faced a toxic mystery: coho salmon returning to ...

An exceptionally warm winter has left many Washington river basins short on the snowpack they would usually have at the start of spring. Washington relies on this snowpack to gradually melt out, ...